Why do you think so much of the Cold War revolved around Berlin?

Explanation:

what

The ability to travel freely between the two parts of Berlin came to an end. The Berlin Wall, which ran through cemeteries, along canals, and through city streets, was a chilling emblem of the Iron Curtain that separated Europe between communism and democracy. The Cold War's epicenter was Berlin.

-Tried to increase production
-Tired to raise living standards
-Colonialism created a national identity crucial to creating gov't